工业无线网络节点故障诊断技术研究

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1、Abstract粤曼曼量曼曼曼曼皇曼曼蔓曼曼曼皇曼皇曼曼曼曼曼曼曼舅曼曼曼量曼曼曼舅Ill曼皇曼曼曼曼曼曼曼曼皇曼皇曼曼曼!曼曼曼曼曼曼皇皇曼曼量量皇曼曼曼璺曼曼苎曼蔓璺曼TheResearchOntheFaultDiagnosisoftheNodeofIndustryWirelessNetworkMajor：ComputerApplicationAuthor：Zhisheng．WuSupervisor：Prof．FenLiuWiththeIndustrywirelessnetworktechnol

2、ogy’Sdevelopingandmaturing．thereliabilityhasbecomethekeypointsforittobewidelyused．NotonlyasthebasisandcarrieroftheIndustrywirelessnetwork,thenetworknode’Sfaultandfailurewillaffectthenormaloperationofthenetwork，butalsoasthebaseoftheprocesscontrolsystema

3、ndthemonitoringofmechanicalequipment,ifnotimmediately,thefaultwillthreattothePeople’Sliveandproperty．Intheanotheraspect，becausetheharshenvironmentoftheindustrialfieldandthenode’sRFcomponentsandsensorcomponentsneedtodirectlycontactwiththeindustrialfield

4、，whichwillincreasetheprobabilityofthenode’Sfault,it’Snecessaryforthereal—timefaultdiagnosisandmonitoring．晰ththerequirementsofreliabilityandsecurityincreasing，thefaultdiagnosishavedevelopedintoascience，forthemethodincludingfaultdiagnosisbasedonanalytica

5、lmodel，faultdiagnosisbasedonsignalprocessingmethod，faultdiagnosismethodbasedonartificialintelligence．But,atpresent,therearelesspaperandresearchaboutthefaultdiagnosisoftheIndustrywirelessnetwork’Snode，evennotmuchaboutthefaultdiagnosisofthewirelesssensor

6、network’Snode．ThispapertakesWIA-PAasexamplefortheIndustrywirelessnetworktostudythefaultdiagnosistechnologyofIndustrywirelessnetwork’Snode．Basedonthein—depthstudyingthethreemainmethodsfortheexistingfaultdiagnosis，afterhighlightingtheadvantagesofnode-red

7、undancymethodandthereasonforit'swidespreadapplicationandresearch，consideringthattheIndustrywirelessnetworkdon’thavethenon-spatialcorrelationcharacteristicsandwantingtoimprovetheshortageoftheexistingmethods’highratemisdiagnosis，poorreal-time，strong-pers

8、on-setting，andthedissatisfyingforindustrymonitoring，thepaperproposesafaultdiagnosismethodforindustrywirelessnetworknodebasedonanalyticalredundancybytakingthelargenumberoffielddataasrealisticbasisandthesignalsingularityoffaultastheorybas